第1个回答 2019-08-18
#include
struct
{
char str[10];
}a[3];
int main()
{
file *fp=fopen("log","r");
int i,t;
if(fp==null)return 1;
for(i=0;i<3;i++)
{
fscanf(fp,"id.%d string:%s\n",&t,a[i].str); //读到结构体存储
printf("id.%d string:%s\n",i+1,a[i].str); //输出
}
fclose(fp);
return 0;
}
第2个回答 2009-06-08
FILE* fp = fopen("card.dat", "wb");
//写
for(int i = 0; i < counts; i++)
{
fwrite(&card[i], sizeof(struct card), 1, fp);
}
fclose(fp);
//读
FILE* fp = fopen("card.dat", "rb");
int index = 0;
while(!feof(fp))
{
fread(&card[index++], sizeof(struct card), 1, fp);
if(index >= 1000)
break;
}
fclose(fp);本回答被提问者采纳